vulnerability
Red Hat: CVE-2018-20843: CVE-2018-20843 expat: large number of colons in input makes parser consume high amount of resources, leading to DoS (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:N/I:N/A:C) | Jun 24, 2019 | Oct 1, 2020 | Jul 9, 2025 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
Jun 24, 2019
Added
Oct 1, 2020
Modified
Jul 9, 2025
Description
In libexpat in Expat before 2.2.7, XML input including XML names that contain a large number of colons could make the XML parser consume a high amount of RAM and CPU resources while processing (enough to be usable for denial-of-service attacks).
Solution(s)
no-fix-redhat-rpm-packageredhat-upgrade-expatredhat-upgrade-expat-debuginforedhat-upgrade-expat-debugsourceredhat-upgrade-expat-develredhat-upgrade-expat-staticredhat-upgrade-mingw32-expatredhat-upgrade-mingw32-expat-debuginforedhat-upgrade-mingw64-expatredhat-upgrade-mingw64-expat-debuginfo
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